评估肥胖症手术候选人久坐时间的客观方法。
Objective assessment of time spent being sedentary in bariatric surgery candidates.
机构信息
Department of Psychiatry and Human Behavior, Warren Alpert Medical School of Brown University, The Miriam Hospital/Weight Control and Diabetes Research Center, 196 Richmond Street, Providence, RI 02903, USA.
出版信息
Obes Surg. 2011 Jun;21(6):811-4. doi: 10.1007/s11695-010-0151-x.
BACKGROUND
Bariatric surgery candidates spend very little time in moderate-to-vigorous intensity physical activity (≥ 3 metabolic equivalents [METs]). This study examined (1) how much of their remaining time is spent in sedentary behaviors (SB < 1.5 METs) compared to light-intensity activities (1.5–2.9 METs) and (2) whether sedentary time varies by BMI.
METHODS
Daily time (hours, %) spent in SB was examined in 42 surgery candidates (BMI = 49.5 ± 7.9 kg/m2) using the SenseWear Pro2 Armband. Participants were stratified by BMI to assess the relationship between degree of obesity and SB.
RESULTS
Participants wore the armband for 5.4 ± 0.7 days and 13.3 ± 1.7 h/day. On average, 81.4% (10.9 ± 2.1 h/day)of this time was spent in SB. Participants with BMI ≥ 50 spent nearly an hour more per day in SB than those with BMI 35–49.9 (p = 0.01).
CONCLUSIONS
Bariatric surgery candidates spend over 80%of their time in SB. Reducing SB may help to increase physical activity in these patients.
背景
肥胖症手术患者仅有很少的时间进行中等到剧烈强度的体力活动（≥3 代谢当量[MET]）。本研究旨在：（1）与轻强度活动（1.5-2.9MET）相比，其剩余时间中有多少用于久坐行为（SB＜1.5MET）；（2）久坐时间是否因 BMI 而异。
方法
采用 SenseWear Pro2 臂带对 42 名手术候选者（BMI=49.5±7.9kg/m2）的日常时间（小时，%）进行 SB 检测。根据 BMI 对参与者进行分层，以评估肥胖程度与 SB 之间的关系。
结果
参与者佩戴臂带的时间为 5.4±0.7 天，每天 13.3±1.7 小时。平均而言，81.4%（10.9±2.1 小时/天）的时间用于 SB。BMI≥50 的参与者每天的 SB 时间比 BMI 为 35-49.9 的参与者多近 1 小时（p=0.01）。
结论
肥胖症手术患者中有超过 80%的时间用于 SB。减少 SB 可能有助于增加这些患者的体力活动。
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